Introducing the TitanArm: a powered, upper-body exoskeleton developed by a group of students (and soon-to-be comic book villains) at the University of Pennsylvania. Capable of lifting 50 pounds and featuring three degrees of freedom in shoulder mobility, this baby helped these undergrads win the silver medal in a recent engineering competition. Although it was developed to assist people with limited mobility, it certainly looks like it could be used for world domination -- or better, overthrowing a tyrannical space station.

In any case, you can check out the video below for a live demo, and head over to the TitanArm's official website for more info.